Zeiss inner rail,[1] generally simply referred to as Zeiss rail, is a ringless scope sight mounting system introduced by Zeiss in 1990 as an alternative to traditional ring mounts.[2] A patent was granted in 1992, and the patent expired in 2008.[3][1] The mounting system is now also offered on sights sold by other major manufacturers, such as Blaser,[4] Leica, Minox, Meopta, Nikon,[5] Noblex (formerly Docter[6]), Schmidt & Bender[7] and Steiner.[8] The system has so far seen most use on the European high-end market.[9]
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